McManus said Carroll, who was being booked into Bexar County Jail, has been charged with murder twice before. He also did federal prison time on a narcotics conviction, Benavides said.

Police records indicate a grand jury no-billed the murder charge against Carroll in one case; the second charge was dismissed, Benavides said. The dates of those incidents were not immediately available.

At the scene, McManus said he counted at least 14 bullet holes from gunshots fired from inside the home as he described how the SWAT team tried to breach the front door shortly after 2:30 p.m.

The officers conducted a "no-knock" search, and once inside the home, were met by a fusillade of gunfire, McManus said.

The chief said the officers returned fire, but did not hit any of the people inside, which included a woman and a small child.

It was not immediately clear who lived at the home, police said.

The SWAT team was at the small frame home to serve what McManus described as a high-risk warrant - searching for narcotics. It was not immediately clear if narcotics were recovered.

It was a chaotic scene in the tree-lined, working-class neighborhood as more than 20 patrol vehicles converged on the scene not far from the Interstate 10 East intersection with Southeast Loop 410.

McManus said the most seriously wounded officer was a 20-year veteran of the force. One of the bullets that struck him traveled under his vest and became lodged in his midsection, the chief said.